HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Diego

$208+ Cheap flights from Ottawa (YOW) to San Diego (SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — SAN
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ottawa to San Diego with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Ottawa to San Diego are usually found in May or June, booked 18 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Find flight deals from Ottawa to San Diego

Cheapest flights from Ottawa to San Diego
Explore the most affordable flight options available from Ottawa to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/259:45 amYOW - SAN
1 stop8h 43mUnited Airlines
Tue 12/25:08 pmSAN - YOW
1 stop14h 18mUnited Airlines
Deal found 10/26$426
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/249:30 amYOW - SAN
1 stop27h 49mMultiple Airlines
Tue 12/29:37 pmSAN - YOW
2 stops38h 07mMultiple Airlines
Deal found 10/26$443
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/249:30 amYOW - SAN
1 stop13h 49mMultiple Airlines
Wed 12/3110:58 pmSAN - YOW
1 stop22h 00mMultiple Airlines
Deal found 10/28$481
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:27 pmYOW - SAN
2 stops20h 32mUnited Airlines
Mon 1/56:55 pmSAN - YOW
2 stops18h 35mUnited Airlines
Deal found 10/27$496
This Air Canada deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:00 amYOW - SAN
1 stop8h 53mAir Canada
Tue 12/26:10 pmSAN - YOW
1 stop9h 33mAir Canada
Deal found 10/26$498
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:25 amYOW - SAN
1 stop13h 23mMultiple Airlines
Thu 11/133:59 pmSAN - YOW
2 stops17h 36mMultiple Airlines
Deal found 10/28$499
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/159:25 amYOW - SAN
1 stop15h 04mMultiple Airlines
Wed 11/191:37 pmSAN - YOW
2 stops24h 48mMultiple Airlines
Deal found 10/27$514

Cheap flight deals from Ottawa to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Ottawa (YOW) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$415
(United Airlines)

One-way from

$208
(Kiwi.com)

Popular in

October

Cheapest in

May

Average price

$581
Provider with most accurate pricing for Ottawa-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ottawa-San Diego flights.
Search Deals
From Ottawa to San Diego
Search Deals
One-way flight from Ottawa to San Diego
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 28, 2025.
Use the filters below to find and compare flights from Ottawa to San Diego that are best for you.

Fly from

Ottawa

Fly to

San Diego

Route

Depart

Return

Price

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 2/24

7:30 pm-11:14 am

2 stops18h 44m

San Diego

Wed 2/25

2:10 pm-10:26 am

1 stop17h 16m

$415

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Tue 2/24

5:48 pm-10:20 am

1 stop19h 32m

San Diego

Wed 2/25

6:10 pm-6:43 am

1 stop9h 33m

$416

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Mon 4/6

1:30 pm-9:08 pm

1 stop10h 38m

San Diego

Mon 4/13

9:55 pm-9:47 am

1 stop8h 52m

$421

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Thu 1/15

9:45 am-8:47 pm

1 stop14h 02m

San Diego

Sat 1/24

7:00 am-5:12 pm

1 stop7h 12m

$421

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sun 1/18

5:11 pm-10:33 pm

1 stop8h 22m

San Diego

Sat 1/24

9:00 am-11:54 pm

2 stops11h 54m

$421

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Sun 11/23

6:00 am-3:27 pm

3 stops36h 27m

$208

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Thu 12/11

6:45 pm-11:45 am

2 stops20h 00m

$213

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Fri 12/12

4:20 pm-2:23 pm

2 stops49h 03m

$217

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Thu 12/11

5:45 pm-11:45 am

1 stop21h 00m

$228

OttawaSan Diego

YOW - SAN

YOWSAN

Ottawa

Thu 11/20

5:45 pm-7:54 am

3 stops41h 09m

$243

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 11 results
1
2

Compare providers for flights from Ottawa to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ottawa to San Diego in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ottawa-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ottawa-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ottawa-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ottawa-San Diego flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ottawa-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ottawa to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Ottawa with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ottawa to San Diego

How far ahead should I book a flight from Ottawa to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Ottawa to San Diego. Price data was last updated on October 24, 2025.

The best time to book flights from Ottawa to San Diego is 18 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Ottawa to San Diego?

Currently, January is the cheapest month in which you can book a flight from Ottawa to San Diego (average of $131). Flying from Ottawa to San Diego in September is currently the most expensive (average of $257). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from YOW to SAN?

Find hourly flight availability from Ottawa to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

When flying from Ottawa to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 70% versus a flight in the morning.

How much does it cost to fly round-trip from Ottawa to San Diego?

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated October 28, 2025.
Get a feel of what it's like to fly with United Airlines and Air Canada from Ottawa to San Diego by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,001 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
9,001 reviews
United Airlines
7.4
Good
9,001 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
Air Canada
7.1
Good
10,371 reviews
United Airlines
7.4
Good
9,001 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Food

6.6

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

Find useful and relevant information for your journey from Ottawa to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ottawa to San Diego?

    A quick flight from Ottawa to San Diego can take about 18h 44m. United Airlines provides one of the quickest options available for as low as $415. The distance between Ottawa and San Diego is about 2360 mi.

  • What are the cheapest airlines flying from Ottawa to San Diego round-trip?

    United Airlines, at $279, was found to be the cheapest airline from Ottawa to San Diego. An alternate airline flying to your destination would be Air Canada. United Airlines is currently priced 34% below the average price you’ll pay for this route.

  • Can I find deals for flights from Ottawa to San Diego that include hotel bookings?

    Yes. In addition to deals on Ottawa to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ottawa to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ottawa to San Diego.

  • Can I find deals for business class flights from Ottawa to San Diego?

    Yes. Cheapflights offers flight deals from Ottawa to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ottawa to San Diego?

    Currently, January is the cheapest month in which you can book a flight from Ottawa to San Diego (average of $131). Flying from Ottawa to San Diego in September is currently the most expensive (average of $257). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
La Mesa
Poway
Lemon Grove
National City

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ottawa to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Los Angeles flights
Pearson Intl to Las Vegas flights
Pearson Intl to San Francisco flights
Pierre Elliott Trudeau Intl to Los Angeles flights
Pierre Elliott Trudeau Intl to Las Vegas flights
Pearson Intl to Ontario flights
Pearson Intl to San Diego flights
Pierre Elliott Trudeau Intl to San Francisco flights
Toronto Island to Los Angeles flights
Pearson Intl to Palm Springs flights
Toronto Island to San Francisco flights
Pierre Elliott Trudeau Intl to Ontario flights
Pierre Elliott Trudeau Intl to San Diego flights
Pearson Intl to Santa Ana flights
Ottawa to Las Vegas flights
Pearson Intl to Sacramento flights
Ottawa to Los Angeles flights
Hamilton to Las Vegas flights
Pearson Intl to San Jose flights
Hamilton to Los Angeles flights
Region of Waterloo Intl to Las Vegas flights
Pearson Intl to Fresno flights
Ottawa to San Francisco flights
Pearson Intl to Oakland flights
Hamilton to San Francisco flights
Region of Waterloo Intl to San Francisco flights
Toronto Island to San Diego flights
Ottawa to Ontario flights
Pierre Elliott Trudeau Intl to Santa Ana flights
Pierre Elliott Trudeau Intl to San Jose flights
Pearson Intl to Burbank flights
Hamilton to Palm Springs flights
Pierre Elliott Trudeau Intl to Palm Springs flights
Pearson Intl to Reno flights
Pierre Elliott Trudeau Intl to Sacramento flights
Hamilton to San Diego flights
Pierre Elliott Trudeau Intl to Reno flights
Region of Waterloo Intl to San Jose flights
Windsor to Los Angeles flights
Hamilton to San Jose flights
Pierre Elliott Trudeau Intl to Burbank flights
London to Ontario flights
Ottawa to Santa Ana flights
London to Las Vegas flights
London to Los Angeles flights

Top 2 airlines flying from Ottawa to San Diego

Discover the top 2 airlines that operate flights from Ottawa to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$279Average$354FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$310Average$502FlexibilityNo cancel feeOn-time67%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.